/**
* @param ExerciseInterface $exercise
* @param string $fileName
* @return ResultInterface
*/
public function check(ExerciseInterface $exercise, $fileName)
{
if (!$exercise instanceof FunctionRequirementsExerciseCheck) {
throw new \InvalidArgumentException();
}
$requiredFunctions = $exercise->getRequiredFunctions();
$bannedFunctions = $exercise->getBannedFunctions();
$code = file_get_contents($fileName);
try {
$ast = $this->parser->parse($code);
} catch (Error $e) {
return Failure::fromCheckAndCodeParseFailure($this, $e, $fileName);
}
$visitor = new FunctionVisitor($requiredFunctions, $bannedFunctions);
$traverser = new NodeTraverser();
$traverser->addVisitor($visitor);
$traverser->traverse($ast);
$bannedFunctions = [];
if ($visitor->hasUsedBannedFunctions()) {
$bannedFunctions = array_map(function (FuncCall $node) {
return ['function' => $node->name->__toString(), 'line' => $node->getLine()];
}, $visitor->getBannedUsages());
}
$missingFunctions = [];
if (!$visitor->hasMetFunctionRequirements()) {
$missingFunctions = $visitor->getMissingRequirements();
}
if (!empty($bannedFunctions) || !empty($missingFunctions)) {
return new FunctionRequirementsFailure($this, $bannedFunctions, $missingFunctions);
}
return Success::fromCheck($this);
}
public function testFailureFromCodeParseException()
{
$e = new Error('Something went wrong yo');
$failure = Failure::fromCheckAndCodeParseFailure($this->check, $e, 'exercise.php');
$this->assertInstanceOf(ResultInterface::class, $failure);
$this->assertEquals('File: "exercise.php" could not be parsed. Error: "Something went wrong yo on unknown line"', $failure->getReason());
$this->assertEquals('Some Check', $failure->getCheckName());
}
/**
* This check grabs the contents of the student's solution and
* attempts to parse it with `nikic/php-parser`. If any exceptions are thrown
* by the parser, it is treated as a failure.
*
* @param ExerciseInterface $exercise The exercise to check against.
* @param Input $input The command line arguments passed to the command.
* @return ResultInterface The result of the check.
*/
public function check(ExerciseInterface $exercise, Input $input)
{
$code = file_get_contents($input->getArgument('program'));
try {
$this->parser->parse($code);
} catch (Error $e) {
return Failure::fromCheckAndCodeParseFailure($this, $e, $input->getArgument('program'));
}
return Success::fromCheck($this);
}
/**
* @param ExerciseInterface $exercise
* @param string $fileName
* @return ResultInterface
*/
public function check(ExerciseInterface $exercise, $fileName)
{
$code = file_get_contents($fileName);
try {
$this->parser->parse($code);
} catch (Error $e) {
return Failure::fromCheckAndCodeParseFailure($this, $e, $fileName);
}
return Success::fromCheck($this);
}
